Ignition System; Introduction - Husqvarna 322HD60 Workshop Manual

7.7 Ignition system

7.8 Introduction

The engine has an electronic ignition system fully
without moving parts. A defective component cannot be
repaired, but must be replaced by a new component.
If the engine does not fire, the ignition module can be
damaged. Before you replace the ignition module, do
the tests that follow.
7.8.1 To examine the spark plug
CAUTION: Always use the recommended spark
plug type. Incorrect spark plug type can cause
damage to the product.
• Examine the spark plug if the engine is low on
power, is not easy to start or does not operate
correctly at idle speed.
• To decrease the risk of unwanted material on the
spark plug electrodes, obey these instructions:
a) Make sure that the idle speed is correctly
adjusted.
b) Make sure that the fuel mixture is correct.
c) Make sure that the air filter is clean.
• If the spark plug is dirty, clean it and make sure that
the electrode gap is correct, refer to
on page 50 .
• Replace the spark plug if it is necessary.
7.8.2 To do a spark test
1. Remove the spark plug from the cylinder.
2. Connect the spark plug to the spark plug cap.
3. Make sure that the stop switch on the throttle handle
is in the start position.
4. Hold the spark plug against the cylinder and pull the
starter rope handle.
a) If a spark occurs between the electrodes on the
spark plug, the ignition operates correctly. The
test is completed.
b) If no spark occurs, continue with the next step.
20 - Repair instructions
5. Remove the spark plug and connect the ignition
Technical data
6. Connect the ground cable to the cutting equipment.
7. Use the knob to adjust the distance between the 2
8. Pull the starter rope handle.
9. Do 1 of the steps that follow.
tester to the spark plug cap. Refer to
on page 10 .
electrodes to 6 mm.
Note: 6 mm is 6 marks on the scale.
a) If a spark occurs between the electrodes on the
ignition tester, replace the spark plug.
b) If there is no spark between the electrodes on
the ignition tester, examine the ignition module.
To examine the ignition module on page
Refer to
22 .
Servicing tools
1369 - 001 - 13.02.2020